Four-cylinder compound locomotive



Oct. z3, .1923. 1,471,677

G. BAILLOT FOUR-CYLINDER coMPoUND LOCOMTIVE Filed June 17 1920 2 Sheets-Sheet l oct. 23, 1923. 1,471,677

G. BAILLOT FOUR CYLINDER COMPOUND LOCOMOTIVE Filed June 17, 1920 2 Sheets-Sheet 2 Patented @et 23, i923.

erre

einen lar-'Er este.

GEORGES Barmer, or EMBoUac, NEAR LIEGE, BELGIUM.

noun-CYLINDER conrounn LocoMoTIvE.

Application sied :une 17, 1920; serial nofasaeez.r

To all/whom t may concer/nf.'

Be it known that l, GEORGES BAILLoT, a subject of the King of Belgium, residing in Embourg, near Liege, in Belgium,

have invented certain new and useful Im! tive to the outside or high pressure cylinders every group or pair may be controlled Lhy only one horizontal main slide valve, and also that the driving rods all acting upon the second coupled axle, are coupled in pairs in such a manner that one small and one large piston, en the same side of the engine,

are always moving together in the same di@ i'ection.

, H0 Another feature, is that the'lfrontbearer axle or pilot-truck axle receives the load inip'artcd to it, through floating leversconnected with a balanced cross-spring.

A further feature still, is that the outer cranks being set accurately, with theirfre spective wheels, the steam admission to the small pistons is always in advance of that to the expansion cylinders; and also, that unequal values, are imparted to the distrib- '.iu uing motions of the slide-valves, this allowingof attaining, in avery simple way, i `e advantages in working generally aimed at in double expansion locomotives.

Another feature is that, in the starting, 3 the feeding of live steam is insured by a cock located in the middle kof everysmall Cylinder and which may produce 'anexcess of admission on reaching even to tne antici pated esca-pe.

ce Another feature consists in the disposition under the steam chests, of two longitudinal cocks, with generalized action and driven rby* a servo-motor or automatically controlled vmotor;.said cocksv being arranged so that they may open allthe portsat once'to the sure cylinders, being inclined atv7o. relafree, air'and servesimultaneously as drain valves, by-pass and sniifers.

Another feature is that the small crank arms in the 4first coupled axle,` insures the free yniotionvef the internal driving rods,

whatever be their length and the degree of 'proximity between this axle and the driving axle.

In the accompanying" drawings, given as example of one form of construction of the invention; Fig. 1 is a general elevation view `of the. locomotive; Fig.V 2 is a vertical transverse Vsection throughr the front end of the locomotive'at the steam' inlet port of the high pressure cylinder; Fig. 3 is a part of a longitudinal section, and Fig. i is a herizontal section mainly along the plane of axles, Figs. 3 ande being on the same scale asFig.2.

rlllie locomotive' as a whole comprises a frame and a truck of lsix or eight coupled'` wheels AAAA, the second pairs of wheels being coupled to cranked axles l?, and in the front a smaller trucker pilot-truck B (Fig. 1). When necessary a rear or trailer truck maybe provided under thev firebox. Thev front or pilot-truck is allowed ya certain lateralplay and partalres in the ,sus-

(Figs. 2 and 3 supported at the middle by `pension. throu h a balanced cross-spring T. Y

the frame of the locomotive and at the ends by inwardly inclined brackets V12 secured to bearings on the interior sides of the Wheels yof .the truck. The shouldering under thebox of cylinders, receives the correspond ing load throughk the levers `SS each rocktive. "The inclination of the spring suspension rods 12 which are secured at their upper ends tothe bearings on the inner side of the pilot truck wheels and ,passing at their lower ends they nuts 13 'under'A the springs, Figs; 2 and 3,' in cooperation with the action of the vspring .buffers 12, Figi, working on they axle'ibox guides, `always Ilrends to bring theV locomotiveiii the mid-l dle yof the track in vthe event ofhead on contact thereof :with another object.`

a The rigidWlieel-base will valways be the most resisting basefof alocomotive,.and the through the outer ends foffthe springT have` 'f overhang, in the modern engines is not as great as formerly, and is so much less in the present device that it permitsof greatly lessening the uneven movement of the spring T. i i

.in the tront,`the four cylinders are in transverse alincment and do not project beyond thc small front or pilot-truck Amore than is strictly necessary (Figs. l and 4). rllhe external or highpressure cylinders C, cpressure cylinders Di) are inclined at 7. Each pair ot onelarge and one small cylinder, is governed by only one'horizontal slide valve l, which is located in a steam chest I', locatedunder the large cylinder (Figs 3 and 4). Y

lThe connecting or driving rods E, E, E', E, Work all on the second coupled Vaxle F (Figs. i, 3 and el) and are coupled in pairs, so thatfone large piston D and fone small piston C on the same side otthe engine, move always together in the same direction. Short connecting or driving rods E2 are secured to first `and second pairs of driving Wheels exteriorly or' lthe driving Wheels and interiorly of they connecting or driving rods E, and timed to move in unison. With the driving rods E, and E of each side of the locomotive.

The block comprising-the tour cylinders is preferably cast oi one piece.

(livin-g to the possibility vdue to the use ot coupled Wheels of moderate diameter, to condense the several organs of the mechanism, Whilst reducing the unitary pressures on same, it has been possible to eHect the suspension oi: the second and third axles by springs V -(l3`ig. 3) located inside the trame ot the locomotive and directly above the axle-boxes, this affording an increase of stability. f v

It maybe seen from the foregoing that in every pair ot. tivo cylinders, the outer highpressurc driving pinsG, being set accurately with their corresponding low-pressure crank arms H, the action of the four driving rods Vwill he uniformly distributed against all the ulcrums afforded by the bearing of the axle-boxes (Fig.y 4).' Y

As tar as the balancing ot 'the parts receiving an alternating motion is concerned, it will be adequate to have the ylow-pressure pistons made of aluminum. lilloreover, the ourdriving rods acti-ng in pairs on thesame `Will lbel therewith regulated, to counterbal ance the `high-pressure pistons against the resistance at the end ot'stroke, produced onl said parts by the compression and pre-admission. v

c The single slide-valve I in the steam chest I controlling at the same time one large nd one vsmall cylinder are driven by inverte-d TWalschaerts link -motions K,I the front partsof which are acted upon bythe are horizontal, Whilst the internal or low rods i6, ot eccentricsN located on the first coupled axle (Fig. 3).

The eccentric discs N ot the two distributions are forged and turned With the small crank arms O which crank arms are arranged in the axle or" the front drivers AA, t'or the tree play of the interior lowpressure rods, (Figs. 3 and 4), c

ln view of the arrangement ot' the steamchest under the large or loiv pressure cylinders, the mechanism L oi every valve motion is located vbetween its low-pressure driving rod and the longitudinal beam ot the 'trame ot the locomotive, (Fig. i). The tree passage arranged i'n the middle ot the engine, and so strikingly illustrated in the plan vieiv, insures the accessibility of the mechanism under the best of conditions.

As soon as a crank arm O has reached its dead-point its eccentric is accurately pergendicular to the horizontal or traction lin@ ot the slide-valves.

yThe low-pressure pistons and cylinders l), D inclined at To, actupon the valve-motion (Figs. 3 and 4;). he outer high-pressure cranks G being set accurately With their respective arms H, it is obvious that, tor the forward stroke, the control ot the valvemotion yon the small vpistons will always be in advance ot 7o on those of the low-pressure cylinders, since the high-pressure pistons Vare retarding at the same rate against the pressure angular advance. the valve motion affords automatically, and in inversely proportional limits, an average elongation or Q5 per cent ot the lovv pressure admission as against the high-pressure admission, a slight diminution ot the high-pressure compression with corresponding increase ot exhaust and last, admittance opening, at the high-pressure ports. much quicker and larger than those 'obtained with the ordinary means ot' tlieTi/Talschaerts slide gear.

The high-pressure admissiomin practice, is obif'iouslyv less than the maximum lowpressure admission. This affords no dithculty at the starting, owing to the steam feeding insured by meansot cocks P, provided in the middle of each small cylinder, (Figs. l and 2).- c

For backward run, the same features in the operation of valve-motion will be reproduced although attenuated, it should be lPi) llU

20' the speed or running,

the high-pressure admission, corresponding with the steady angular advance mentioned above, this however, can have no inconvenience with the compound working.

rEhe slide-wilve l of the hollow-type having the four partitions ld admits in its middle port l5 the live-steam which is simultaneously received in first emission and contained in second expansion between the extreme partitions through the external edges et which takes place the final exhaust (Figs. 3 and e). @wing to this device, the pressure from the steam chest (the feeding lof which is always insured by at least one of said cocks P) can only act either as back pressure or as compression, after an auX- iliary admission or excess of admission under high-pressure however slow mightpbe lilith this very simple device, the maximum live-power at the starting, is lower than the energy produced in the most favorable position by a compound locomotive working with four directly fed cylinders;

on the other hand, the minimum of power f sure oit the steam chest and of the low-pres- -V sure cylinders, is only considered at the starting. as subsidiary since, a high but gradually reached motive-momentum hinders effectively any undue slipping of the wheels.

rl`he internal low pressure mechanisms are balancedthrough a counter-weight Q, with short lever arm g, serving ttor both crank arms, which obviates any increase otwear Fil uit the track, under the action of the adjacent driving wheels (Fig.

Last Vof all, two elongated longitudinal cofi'ls or air distributors R R (Fig. 2) withk generalized action and driven by servo-rnctois er automaticall controlled motors are d in the bosses that rorin cock-bodies provide u n d er the slide-valve boxes. These distributors may open simultaneously all the ports,

sure cylinders being linclined relative to the high pressure cylinders. l u

2. ln a multiple cylinder locomotive `the combination of, high pressure cylinders; .and low pressure cylinders, the low pressure `inclined relative to the hio'h pressure cyl-` its inders.. c

4.111 a multiple cylinder locomotive the' combination ot, high pressure'cylinders;

and low pressure cylinders; the cylinders being arranged in pairs comprising a high pressure cylinder and a low 'pressure cylinder, and the low pressure cylinders being. inclined at seven degrees relative to the high pressure cylinders.

v5. In a multiple cylinder `locomotive the combination of, horizontal high pressure l cylinders; and low pressure cylinders, the

low pressure cylinders being inclined rela-7.

tive to the high pressure'cylinders. l

6. ln a multiple cylinder locomotive the combination of, horizontal high pressure cylinders; andlow pressure cylinders, the

low pressure cylinders being inclined.

seven degrees relative to the high( pressure cylinders. Y. Y

,7. In a multiple cylinder locomotive the combination ci, horizontal high pressure cylinders; Vand low pressure cylinders, the

cylinders being arranged in pairs comprisingv a high pressure cylinder. and a low pressure cylinder, and the low pressure cylinders being inclined `relative to the higli'pressure cylinders'.

8. In a multiple cylinder loco'inotivethe combination ofi horizontal high pressure cylinders; and lor.'v pressure cylinders; the cylinders being arranged in .pairs comprising a high pressure cylinder and low pressure cylinder, and the low pressure cylinders being inclined 1 at seven degrees relative to the high pressure cylinders. i j

9. In a ymultiple cylinder locomotive the combination oli, high pressure cylinders low pressure cylinders; the cyliudersbeing arranged in pairs .cou/minsing high pressure c 7linder and a low Tsressuie c iliiider the low pressure cylinder ci' each pair being inclined relative to thehigh pressure cylinders; and a single valve 'for controlling each pair of cylinders. y l

10. In a-inultiple'cylinder locomotive the combination ci", high pressure cylinders; 'low pressurecylinders; the cylinders being arranged in pairs comprising a high pres-` sure cylinder and a low pressure cylinder,

the low pressure cylinders being inclined relative to the high pressure cylinders; and a single slidevalve of cylinders.

for controlling each pair trolling each pair of cylinders.

12. In a multiple cylinder locomotive the combination ot, high pressure cylinders; low pressure cylinders; the cylinders being arranged in pairs, each paii` comprising a high pressure cylinder and a low pressure cylinder, the low pressure cylinders ot each pair being inclined relative to the high pressure cylinders; anda single valve tor controlling each pair ot cylinders. Y

' 13. In a multiple cylinder locomotive the combination oi", high pressure cylinders; low pressure cylinders; the cylinders being arranged in pairs, each pair comprising a high pressure cylinder and a low pressure cylinder,

, thelow pressure cylinder of each pair being inclined relative to the high pressure cylinder; and a single slide valve for controlling each pair of cylinders. n

14;. ln a multiple cylinder locomotive the combination of, horizontal high pressure cylinders;`low pressure cylinders; the cylinders being arrangedv in pairs comprising a high pressure cylinder anda low pressure cylinder, the low pressure cylinders'being inclined relative to the high pressure cylinders; anda single slide valve for controlling each pair ot cylinders.y

15. ln a multiple cylinder locomotive the combination of, horizontal highy pressure cylinders: low pressure cylinders; theeylinders being arranged in pairs comprising a high pressure cylinder and ay low pressure cylinder, the low pressure cylinders being inclined relative to the high pressure cylinders; and a. single horizontal slide valve tor controlling each pair ot cylinders.`

16. In a multiple cylinder locomotive the combination of; high pressure cylinders;l

low pressure cylinders; the cylinders being Varranged in pairs comprising a. high pressure cylinder and a low pressure cylinder;

the low pressure cylinder bt each pair being inclined relative to the high pressure cylinder; a steam chest between each pair of cylinders and single slide valve toi' each steamY chest for controlling each pair of cylinders.

17. ln a multiple cylinder locomotive the combination of1` horizontal high pressure cylinders; lowpressure cylinders; the cylinders being arranged in pairs comprising a high pressure cylinder and a lowy pressure cylinder; and the low pressure cylinder 'ot Veach pair ybeing inclined relative to the high pressure cylinder; a steam chest` between eachpair ct cylinders; and a single horiv ranged in pairs7 each pair ccmprisinft zontal slide valve for each steam chest for controlling each pair ot cylinders.

' 18. in a multiple cylinder locomotive the combination ci; high pressure cylinders; low pressure cylindirs; the cylinders being arg a hi gli pressure cylinder and a low pressure cylinder, the low pressure cylinder being inclined relative tothe high pressuiecylinder; a steam chest between each-pair oit cylinders; a single slide valve tor each steam chest tor controlling each pair oit cylinders; and link and eccentric means tor operating each slide valve.

19. In a. multiple cylinder locomotive the combination ot; horizontal high pressure cylinders; low pressure cylinders; the cylinders being arranged in pairs, each pair comliirising a high pressure cylinder and a low pressure cylinder, the low pressure cylinder being inclined relative to the high pressure cylinder; a steam chest between each pair et cylinders; a single horizontal slide valve toi' cach steam chest tor control- 'line' each Jair ot cvlinders'- and link and eccentric means for operating each slidev valve.

20. In a multiple cylinder locomotive the combination of, high pressure cylinders; low

pressure cylinders; the cylinders being arranged in pairs7 each pair comprising a high pressure cylinder and a low pressure cylinder; the low pressure cylinders being inclined relative to the high pressure cylinders; a steam chest between each pair of cylinders; a single slide valve tor each steam chest; and dependent link and eccentric means for operating each slide valve.

21. ln amultiple cylinder locomotive the combination ot. horizontal high pressure cylinders; low pressure cylinders; the cylinders being arranged in pairs comprising a high pressure cylinder and a low pressure cylinder; the low pressure cylinders being inclined relative to the high pressure cylinders; a steam chest between each pair of cylinders; a single slide valve for each steam chest; and dependent link and eccentric means for operating each slide valve.

, 22. In a multiple cylinder locomotive the combination or. high pressure cylinders; low pressure cylinders; the cylinders being arranged in pairs comprising a high pressure cylinder and a low pressure cylinder, the low pressure cylinders being inclined relative to the high pressure cylinders; a steam chest between each pair oli cylinders; a horizontal slide valve -for each steam chest 'for controlling each pair of cylinders.; means ttor op erating such slide valve; a first pair of driving wheels coupled on the outer ends of a sidesfot the second pair of driving wheels;

'and y.rods connecting the pistons of the low pressure cylinders and said cranked axle; the connecting rods of each pair ot cylinders being movable in unison.

23. In multiple cylinder locomotive the combination of, high pressure cylinders;

low pressure cylinders; the cylinders beingv arranged in pairs comprising a high pres` sure cylinder and a low pressure cylinder and the low pressure cylinders being inclined relative to the high pressure cylinders; a steam chest between each pair of cylinders; a horizontal slide valve for each steam chest for controlling each pair oi' cylinders; a tirst pair of driving wheels coupled on a straight axle; a second pair of driving` wheels coupled on the outer ends of a cranked axle; rods connecting theV pistons ot the high pressure cylinders and the exterior sides of the second pair ot driving wheels; rods connecting the pistons oit the low pressure cylinders and said cranked axle; and rods connecting the first and second pairs of drivingwheels on the exterior sides ot the wheels intermediate of the exterior ot said wheels and the connecting rods oi the admission cylinders; allV of said connecting rods on each side of the locomotive being movable in unison. Y

24. In a multiple cylinder locomotive the combination oit, high pressure cylinders; low pressure cylinders; the cylinders being arranged in pairs comprising a high pressure cylinder and a low pressure cylinder; the low pressure cylinder being arranged at an incline relative to the high pressure cylinder; a iirst pair ot driving wheels coupled on a straight axle; a second pair of driving wheels coupled on the outer ends of a cranked axle; a counterweight for the cranked axle; a lever arm for the counterweight; rods connecting the pistons or the high pres sure cylinders and the exterior sides oit the second pair ot driving wheels: and rods connecting the pistons of the low pressure cylinders and said cranked axle; t-he connecting rods of each pair of cylinders being movable in unison. n

25. In a locomotive the combination ot', a frame tor the locomotive; and a pilot truck comprising wheels coupled on an axle, a spring parallel to said axle` suspended on the frame of the locomotive adjacent to theV middle of said axle, and inwardly inclined dependent rods converging' towards their lower ends secured at their upper ends to the bearings of said wheels on the inner sides thereof, the lower endsot said rods passing truck comprising wheels coupled on an axle,

27. In a locomotive the combination ot',

a frame ot the locomotive; a pilot truck comprising wheels coupled on an axle, 'boxes for said axle, a spring parallel to said axle suspended on the trame ofthe locomotive adjacent to the middle yof saidaxle, inwardly inclined dependent rods secured at their upper ends to the bearings ot said wheels on the inner sides thereof, the lower ends ot said rods passing through the outer ends or said spring and permitting movement or" said outer ends on saidbrackets, nuts tor the lower ends ot said rods on the under side of said spring; and lever arms, the lever arms at one of their ends rocking on the boxes of said axle and at the other of their ends being movably connected to said trame ot the locomotive.

28. In a multiple cylinder locomotive the combination of, high pressure cylinders; low pressure cylinders; the cylinders beingarranged in pairs comprising a high prersure cylinder and a low pressure cylinder; a single valve ior controlling eachv pair of cylinders;and means appurtenant to each of the high pressure -cylinders 'for feeding additional live steam thereto at start-ing.

29. In a multiple cylinder locomotive the combination of, high pressure cylinders;

low pressure cylinders; the cylinders being cylinders; and means located substantially midway longitudinally of each of the high pressure cylinders at the top thereof for feeding additional live steam thereto at starting. l

30. In a multiple cylinder locomotive the combination' of, high pressure cylinders; low pressure cylinders; the cylinders being arranged in pairs comprising a high pressure cylinder and alow pressure cylinder, the low pressure cylinder of each pair being inclined relative to the high pressure cylinder; a single valve for controlling each pair oi" cylinders; and means appurtenant to each of the Vhigh pressure cylinders for feeding additional live steam thereto at starting.

8l. In a multiple cylinder locomotive the combination of, high pressure cylinders; low pressure cylinders; the cylinders being arranged in pairs comprising a high pressure cylinder and a low pressure cylinder,

the low pressure cylinderfofl each pair beingl inclined relative'to the high pressurecylid;

der; a singleslide valve 'for controlling each pair of cylinders; and meansloeated substantially midway of each of the high pressure cylinders at the top thereof for feeding additional live steam thereto at startgli In a multiple cylinder locomotive the combination of, Alow pressure cylinders;

high pressure cylinders; the cylinders beingk sure cylinder and. a low pressure cylinder;

a steam chest between each pair of cylinders; valve means for controlling `each pair of cylinders; and means operated by a motor for simultaneously opening all the ports of the valve means and of the steam chest of each pair ofi cylinders to free air and .serving as drain valves, by-pass and sniiers.

34, In a multiple cylinder locomotive the combination f of, high pressure cylinders; low pressure cylinders; the cylinders being arranged in pairs comprising a high pressure cylinder and a low pressure cylinder; the low pressure cylinder of each pair' bei ing inclined relative tothe high pressure cylinder; a steam chest between the cylinders ofeach pair; valve means for controlling each pair of cylinders; and means operated by an automaticallyV controlled motor for simultaneously opening all the ports of the valve means of each pair of cylinders to free air and serving as drainlvalves, bypass and sniffers 35. rIn a multiple cylinder locomotive the combination of, high Lpressure cylinders; low pressure cylinders; the cylinders being arranged in pairs comprising a high pres sure cylinder and a low pressure cylinder, the low pressure cylinder of each pair being inclined relative to the high pressure oylin der; a steam chest between the cylinders of each pair; valve means for controlling each pair of cylinders; and means operated by an automatically controlled motor for simultaneously opening all the ports of the valve means and of the steam chest yof each pair of cylinders to tree air and serving as drain valves, by-pass and sniffers.

36. In a locomotive the combination of,

a frame of the locomotive; a pilot truck l" comprising wheels coupled on an axle, a spring parallel to said axle suspended on the frame of the locomotive adjacent to the middle of said axle, inwardly inclined dependent rods secured at their upper ends to the bearings of said wheels on the inner sides thereof, the lower ends of said rods passing through the outer ends of said spring,and nuts for the lower ends of said rods on the under side of said spring; and buffers on the front of the locomotive c0- operating with said rods whereby upon contact of the buffers with an object the tendency is to bring the locomotive in the middle of the track. v

In testimony whereof, I have hereunder ailixed my signature in presence oit the two witnesses.

v(SrEORGrES BAILLOT. Witnesses:

A. BnLLrooM, CURTIS T. Evnnn'r'r. 

